Description

Link-belt ABS-78A, TC-78A, API-78A, TC-78B Parts Catalog

I’ve seen a crew order a swing brake for a TC-78A when the machine on site was a TC-78B. That mistake cost them a full day and a long-distance call to Link-belt. This factory parts catalog kills that guesswork. The Link-belt ABS-78A, TC-78A, API-78A, TC-78B Parts Catalog is 142 pages of OEM part numbers, exploded views, and serial number identification. You don’t get that from aftermarket PDFs that copy blurry pages and leave out revision numbers. If you’re ordering parts for these cranes, you need the serial number off the capacity plate or the boom foot lug. The OCR from the first page tells you exactly where to find it – on cable cranes it’s on the right hand boom foot mounting lug; on hydraulic cranes it’s below the boom hoist cylinder mounting lugs. Write that number down before you touch a phone.

Machine Serial Number – Why It Matters

Every page in this catalog revolves around the machine serial number. The manual starts by saying: “The machine serial number is on the serial number capacity plate, or on the Crane Rating Manual located inside the operator’s cab.” That’s not a suggestion – it’s the only way to guarantee you get the correct part. I’ve worked on ABS-78A units that had a field modification that changed the counterweight assembly. Without the serial number, you’re ordering blind. The catalog includes a blank line for you to write the serial number on each model page (pages 1, 3, 5). Do it. Then when you call Link-belt or your distributor, you have the data ready. Saves a half-hour of back-and-forth.

What Models Does This Parts Catalog Cover?

Four models under one Book No. 406: ABS-78A, TC-78A, API-78A, and TC-78B. The API-78A is a dedicated pile driver variant – different boom geometry, different parts. The TC-78A and TC-78B look similar but have different swing drives and final drives. Don’t trust the decal on the side of the cab. Use the serial number. This catalog gives you the same factory data the Link-belt dealer uses. If you’re also working on newer Link-belt cranes, check the related manuals: Link-Belt RTC-80130 II 2011 Parts Catalog and Link-Belt HTC-86100 2011 Parts Catalog and Link-Belt LS118 1992 Parts Catalog.

142 Pages of Factory Parts Data

That’s 142 pages of exploded diagrams, part numbers, hardware callouts, and ordering instructions. Every page is scanned from the original Link-Belt Construction Equipment Company print. No blurry third-party reproductions. The catalog includes the parts for the upper revolving frame, boom, swing system, travel gear, hydraulic components, and electrical. Need a seal kit for the boom hoist cylinder? You’ll find the part number in the hydraulic section. Need a new counterweight? The exploded view shows the exact bolt pattern and torque specs for the mounting bolts. This is the same document that your dealer’s parts guy pulls up when you call. Having it on your bench means you can pre-order everything before the machine is down.

Know Your Parts Before You Order

Don’t call the distributor and say “I need a part for a TC-78A.” They’ll ask for the serial number. Then they’ll ask for the part number from the catalog. If you don’t have the catalog, you’re guessing. This manual gives you the breakdown. For example, the TC-78B uses a different swing brake assembly than the TC-78A – the catalog shows the difference in the exploded view. If you order the wrong one, you’ll have to RMA it and wait another week. Safety warning: never substitute a part that looks close. Cranes are load-rated. A mismatched bearing or hydraulic fitting can cause a catastrophic failure. Always use the OEM part number from this catalog.

Parts Catalog vs. Service Manual: What You Get

This is a parts catalog, not a service manual. It won’t tell you how to rebuild the transmission or adjust the brakes. But without it, you can’t get the right parts to do the service work. You need both. For a broader perspective on why OEM documentation is critical in heavy equipment, see the Automotive Industry Overview and Automotive Industry Overview. The construction industry follows the same principles – OEM specs are the only safe reference. I’ve dealt with aftermarket parts catalogs that listed wrong part numbers. They cost me time and money. This one is genuine Link-Belt.

Frequently Asked Questions

How do I find my machine serial number?

Look on the serial number capacity plate inside the operator’s cab, or on the Crane Rating Manual. If that’s missing, on cable cranes it’s stamped on the right hand boom foot mounting lug; on hydraulic cranes it’s below the boom hoist cylinder mounting lugs. This catalog shows you exactly where on page 1.

What if the serial number is completely unreadable?

Call Link-Belt dealer with the number stamped on the upper revolving frame. They can cross-reference it. The catalog explains this on the first page of each model section.

Does this catalog include torque specifications for assembly?

No. This is a parts catalog, not a service manual. It lists part numbers and exploded views. Torque specs are in the service manual. But you can’t torque a part if you order the wrong one.

Can I use this catalog for the API-78A model?

Yes. The API-78A is included under Book No. 406. The serial number identification is the same. Use the API-78A section.

If you’re working on a Link-belt crane, you need the factory data. Don’t waste time guessing part numbers or chasing down old revisions. Access the Factory Manual and keep it on your tablet or printed out. Your machine – and your schedule – will thank you.